宏 晶 科 技
STC
micro
TM
江苏½芯科技有限公司
STC8
系列单片机
技术参考手册
技术支持½站:www.STCMCUDATA.com
/
www.STCMCU.com
资料更新日期:2017/11/7
STC8
系列技术手册
官方½站:
www.STCMCUDATA.com / www.STCMCU.com
技术支持:
13922829991
研发顾问:
13922805190
目½
1
2
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3
3.1
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
3.1.6
3.2
3.2.1
3.2.2
3.2.3
3.2.4
3.3
3.3.1
3.4
3.4.1
3.4.2
3.4.3
3.4.4
3.4.5
3.4.6
3.4.7
3.4.8
3.4.9
3.4.10
4
4.1
4.2
概述..........................................................................................................................................
1
特性及价格..............................................................................................................................
3
STC8A8K64S4A12
系列特性及价格
..................................................................................... 3
STC8A4K64S2A12
系列特性及价格
..................................................................................... 5
STC8F2K64S4
系列特性及价格
............................................................................................ 7
STC8F2K64S2
系列特性及价格
............................................................................................ 9
STC8H1K64S2A10
系列提前通告........................................................................................11
STC8H1K08S2A10
系列提前通告.......................................................................................
12
STC8H1K08S2
系列提前通告..............................................................................................
13
STC8H04A10
系列提前通告
................................................................................................ 14
STC8H04
系列提前通告.......................................................................................................
15
管脚及说明............................................................................................................................
16
管脚图....................................................................................................................................
16
STC8A8K64S4A12
系列管脚图...........................................................................................
16
STC8A4K64S2A12
系列管脚图...........................................................................................
20
STC8F2K64S4
系列管脚图
.................................................................................................. 24
STC8F2K64S2
系列管脚图
.................................................................................................. 27
STC8H1K08S2A10
系列管脚图...........................................................................................
30
STC8H1K08S2
系列管脚图..................................................................................................
31
管脚说明................................................................................................................................
32
STC8A8K64S4A12
系列管脚说明.......................................................................................
32
STC8A4K64S2A12
系列管脚说明.......................................................................................
39
STC8F2K64S4
系列管脚说明
.............................................................................................. 46
STC8F2K64S2
系列管脚说明
.............................................................................................. 50
功½脚切换
............................................................................................................................ 54
功½脚切换相关寄存器
........................................................................................................ 54
范例程序................................................................................................................................
57
串口
1
切换............................................................................................................................
57
串口
2
切换............................................................................................................................
58
串口
3
切换............................................................................................................................
58
串口
4
切换............................................................................................................................
59
SPI
切换
................................................................................................................................. 59
PWM
切换
............................................................................................................................. 60
PCA/CCP/PWM
切换............................................................................................................
62
I2C切换.................................................................................................................................. 63
比较器输出切换
.................................................................................................................... 63
主时钟输出切换
.................................................................................................................... 64
封装尺寸图............................................................................................................................
66
LQFP64S
封装尺寸图(12mm*12mm).............................................................................
66
LQFP64L
封装尺寸图(16mm*16mm).............................................................................
67
-i-
江苏½芯科技有限公司
总机:
0513-5501 2928/2929/2966
传真:
0513-5501 2926/2956/2947
STC8
系列技术手册
官方½站:
www.STCMCUDATA.com / www.STCMCU.com
技术支持:
13922829991
研发顾问:
13922805190
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5
5.1
5.2
6
6.1
6.1.1
6.1.2
6.1.3
6.1.4
6.1.5
6.2
6.2.1
6.2.2
6.2.3
6.2.4
6.2.5
6.2.6
7
7.1
7.2
7.3
7.4
7.4.1
7.4.2
7.4.3
7.4.4
7.4.5
7.4.6
8
8.1
8.2
8.2.1
8.2.2
8.2.3
8.3
8.3.1
8.3.2
LQFP48
封装尺寸图(9mm*9mm)
................................................................................... 68
LQFP44
封装尺寸图(12mm*12mm)
............................................................................... 71
LQFP32
封装尺寸图(9mm*9mm)
................................................................................... 74
QFN32
封装尺寸图(4mm*4mm).....................................................................................
75
PDIP40
封装尺寸图
.............................................................................................................. 76
TSSOP20
封装尺寸图
........................................................................................................... 77
SOP16
封装尺寸图................................................................................................................
78
STC8
系列单片机选型价格一览表
..................................................................................... 79
STC8
系列单片机封装价格一览表......................................................................................
80
STC8
系列单片机½名规则..................................................................................................
81
ISP
下½½及典型应用线路图.................................................................................................
82
STC8F
系列
ISP
下½½应用线路图........................................................................................
82
½用
RS-232
½换器下½½......................................................................................................
82
½用
PL2303-SA
下½½
........................................................................................................... 83
½用
U8-Mini
工具下½½
........................................................................................................ 84
½用
U8W
工具下½½
............................................................................................................. 85
USB
直接
ISP
下½½
............................................................................................................... 86
STC8A
系列
ISP
下½½应用线路图
....................................................................................... 87
½用
RS-232
½换下½½(½用高精度
ADC)..................................................................... 87
½用
RS-232
½换下½½(ADC 一般应用).........................................................................
88
½用
PL2303
下½½
................................................................................................................. 89
½用
U8-Mini
工具下½½
........................................................................................................ 90
½用
U8W
工具下½½
............................................................................................................. 91
USB
直接
ISP
下½½
............................................................................................................... 92
时钟、复½与电源管理........................................................................................................
93
系统时钟控制
........................................................................................................................ 93
系统复½................................................................................................................................
95
系统电源管理
........................................................................................................................ 97
范例程序................................................................................................................................
97
选择系统时钟源
.................................................................................................................... 97
主时钟分频输出
.................................................................................................................... 99
看门狗定时器应用
.............................................................................................................. 100
½复½实现自定义下½½
...................................................................................................... 101
½压检测..............................................................................................................................
102
省电模式..............................................................................................................................
103
存储器..................................................................................................................................
105
程序存储器
.......................................................................................................................... 105
数据存储器
.......................................................................................................................... 105
内部
RAM............................................................................................................................ 106
内部扩展
RAM.................................................................................................................... 107
外部扩展
RAM.................................................................................................................... 108
存储器中的特殊参数
.......................................................................................................... 109
读取
Bandgap
电压值..........................................................................................................
109
读取全球唯一
ID
号.............................................................................................................111
江苏½芯科技有限公司
总机:
0513-5501 2928/2929/2966
传真:
0513-5501 2926/2956/2947
- ii -
STC8
系列技术手册
官方½站:
www.STCMCUDATA.com / www.STCMCU.com
技术支持:
13922829991
研发顾问:
13922805190
读取
32K
掉电唤醒定时器的频率
......................................................................................113
手动设½
22.1184MHz
和
24MHz
内部
IRC
频率
.............................................................115
9
特殊功½寄存器...................................................................................................................117
9.1
STC8A8K64S4A12
系列......................................................................................................117
9.2
STC8A4K64S2A12
系列......................................................................................................118
9.3
STC8F2K64S4
系列
.............................................................................................................119
9.4
STC8F2K64S2
系列
............................................................................................................ 120
9.5
特殊功½寄存器列表
.......................................................................................................... 121
10
I/O
口
................................................................................................................................... 126
10.1
I/O
口相关寄存器................................................................................................................
126
10.2
配½
I/O
口...........................................................................................................................
129
10.3
I/O
的结构图........................................................................................................................
131
10.3.1
准双向口(弱上拉)
.......................................................................................................... 131
10.3.2
推½输出..............................................................................................................................
131
10.3.3
高阻输入..............................................................................................................................
131
10.3.4
开漏输出..............................................................................................................................
132
范例程序..............................................................................................................................
132
10.4
10.4.1
端口模式设½
...................................................................................................................... 132
10.4.2
双向口读写操½
.................................................................................................................. 133
11
指令系统..............................................................................................................................
135
12
中断系统..............................................................................................................................
139
12.1
STC8
系列中断源................................................................................................................
139
12.1.1 STC8A8K64S4A12
系列中断源.........................................................................................
140
12.1.2 STC8A4K64S2A12
系列中断源.........................................................................................
140
12.1.3 STC8F2K64S4
系列中断源
................................................................................................ 140
12.1.4 STC8F2K64S2
系列中断源
................................................................................................ 141
12.2
STC8
中断结构图................................................................................................................
142
12.3
STC8
系列中断列表............................................................................................................
143
12.4
中断相关寄存器
.................................................................................................................. 145
12.4.1
中断½½寄存器(中断允许½)
...................................................................................... 146
12.4.2
中断请求寄存器(中断标志½)
...................................................................................... 150
12.4.3
中断优先级寄存器
.............................................................................................................. 152
12.5
范例程序..............................................................................................................................
154
12.5.1 INT0
中断(上升沿和下降沿)
........................................................................................ 154
12.5.2 INT0
中断(下降沿)
........................................................................................................ 155
12.5.3 INT1
中断(上升沿和下降沿)
........................................................................................ 156
12.5.4 INT1
中断(下降沿)
........................................................................................................ 157
12.5.5 INT2
中断(下降沿)
........................................................................................................ 158
12.5.6 INT3
中断(下降沿)
........................................................................................................ 159
12.5.7 INT4
中断(下降沿)
........................................................................................................ 160
12.5.8
定时器
0
中断
...................................................................................................................... 161
12.5.9
定时器
1
中断
...................................................................................................................... 162
12.5.10
定时器
2
中断
...................................................................................................................... 163
12.5.11
定时器
3
中断
...................................................................................................................... 164
8.3.3
8.3.4
江苏½芯科技有限公司
总机:
0513-5501 2928/2929/2966
传真:
0513-5501 2926/2956/2947
- iii -
STC8
系列技术手册
官方½站:
www.STCMCUDATA.com / www.STCMCU.com
技术支持:
13922829991
研发顾问:
13922805190
12.5.12
12.5.13
12.5.14
12.5.15
12.5.16
12.5.17
12.5.18
12.5.19
12.5.20
12.5.21
12.5.22
12.5.23
13
13.1
13.2
13.3
13.4
13.5
13.6
13.6.1
13.6.2
13.6.3
13.6.4
13.6.5
13.6.6
13.6.7
13.6.8
13.6.9
13.6.10
13.6.11
13.6.12
13.6.13
13.6.14
13.6.15
13.6.16
13.6.17
13.6.18
13.6.19
13.6.20
13.6.21
13.6.22
13.6.23
13.6.24
13.6.25
定时器
4
中断
...................................................................................................................... 165
UART1
中断
........................................................................................................................ 166
UART2
中断
........................................................................................................................ 168
UART3
中断
........................................................................................................................ 169
UART4
中断
........................................................................................................................ 171
ADC
中断
............................................................................................................................ 173
LVD
中断
............................................................................................................................. 174
PCA
中断
............................................................................................................................. 175
SPI
中断
............................................................................................................................... 177
CMP
中断
............................................................................................................................ 178
PWM
中断
........................................................................................................................... 179
I2C中断................................................................................................................................ 182
定时器/计数器.....................................................................................................................
185
定时器的相关寄存器
.......................................................................................................... 185
定时器
0/1............................................................................................................................ 186
定时器
2............................................................................................................................... 188
定时器
3/4............................................................................................................................ 189
掉电唤醒定时器
.................................................................................................................. 190
范例程序..............................................................................................................................
191
定时器
0(模式 0-16
½自动重½½)
............................................................................... 191
定时器
0(模式 1-16
½不自动重½½)
........................................................................... 192
定时器
0(模式 2-8
½自动重½½)
................................................................................. 193
定时器
0(模式 3-16
½自动重½½不可屏½中断)
....................................................... 194
定时器
0(外部计数-扩展 T0
为外部下降沿中断).....................................................
195
定时器
0(测量脉½-INT0
高电平½度)......................................................................
196
定时器
0(时钟分频输出) ............................................................................................... 197
定时器
1(模式 0-16
½自动重½½)
............................................................................... 198
定时器
1(模式 1-16
½不自动重½½)
........................................................................... 199
定时器
1(模式 2-8
½自动重½½)
................................................................................. 200
定时器
1(外部计数-扩展 T1
为外部下降沿中断).....................................................
201
定时器
1(测量脉½-INT1
高电平½度)......................................................................
202
定时器
1(时钟分频输出) ............................................................................................... 203
定时器
1(模式 0)做串口 1
波特率发生器
.................................................................... 203
定时器
1(模式 2)做串口 1
波特率发生器
.................................................................... 206
定时器
2(16
½自动重½½)
.............................................................................................. 209
定时器
2(外部计数-扩展 T2
为外部下降沿中断).....................................................
210
定时器
2(时钟分频输出) ............................................................................................... 212
定时器
2
做串口
1
波特率发生器
...................................................................................... 213
定时器
2
做串口
2
波特率发生器
...................................................................................... 215
定时器
2
做串口
3
波特率发生器
...................................................................................... 218
定时器
2
做串口
4
波特率发生器
...................................................................................... 221
定时器
3(16
½自动重½½)
.............................................................................................. 225
定时器
3(外部计数-扩展 T3
为外部下降沿中断).....................................................
226
定时器
3(时钟分频输出) ............................................................................................... 227
江苏½芯科技有限公司
总机:
0513-5501 2928/2929/2966
传真:
0513-5501 2926/2956/2947
- iv -